![]() For example, suppose package-a uses while package-b is still on. If you have packages using the same dependency but on different versions, npm will create a node_modules folder inside of one of the packages. ├── node_modules │ ├── lodash # `lodash` is installed in the root `node_modules/` │ ├── package-a # package-a is symlinked │ └── package-b # package-b is symlinked ├── package.json └── packages └── #. ├── package.json └── packages ├── package-a │ └── package.json # Dependencies: `lodash` └── package-b └── package.json # Dependencies: `lodash`, `package-a`Īfter running npm install, your node_modules folder will look like this. If two of your packages depend on each other, they get the reference from there.įor example, if you have this structure. Your packages (the ones you created) also get symlinked in the root node_modules folder. ![]() This is done for performance reasons: if a dependency is shared by multiple packages, it gets saved only once in the root. Now, when you run npm install in a multi-package repository, npm’s dependency tree manager is smart enough to scan your folders looking for all dependencies to install.ĭependencies are hoisted, meaning they get installed in the root node_modules folder. ![]() I’ve also provided a repository on GitHub with some sample code from the examples. In this post, you will see how npm Workspaces work, how to get started, and a comparison with other Workspace implementations. This special type of repository is known as a monorepo. In projects like this, you usually have a complex dependency tree, with many packages depending on each other. You can find similarities between all three Workspace implementations.īut what are Workspaces for? Workspaces help us managing repositories with multiple packages - more than one package.json file. In fact, npm is not trying to reinvent the wheel. Other package managers such as Yarn and pnmp already ship with Workspaces for quite a while now. The 7th version of the package manager introduced Workspaces. The first thing that we need to do for our setup is, create a new project which we will call "pnpm-monorepo" you can of course name it whatever you want to.The newest major release of npm, launched in October 2020, came out with a very anticipated feature (at least for me). To follow along you must have pnpm and node installed in your machine. Now that we have an idea about what monorepos are and what problems they solve, let's dive right into the setup and see how we can set up a basic monorepo with pnpm workspaces. Monorepos can significantly improve this workflow by packaging both of these projects into a single repository and importing components directly from the workspace instead of importing them from the cloud. ![]() The problem with this type of workflow is every time we will make any new changes to the shared package, we will have to publish the app again to the npm registry for the consumer app to get the latest changes and use them. Then the consumer app can install it from the npm registry and use it how we import and use React, Tailwind, Material-UI and other packages. One way to work with this type of project is a multi-repo approach where we create two separate repositories and host them at the npm registry. Main: This is going to be our main project which will be the consumer of our Shared package. Shared: This will have all our shared components that can be used by different projects. Let's consider an example where we are building an application and we have two projects inside of it: Monorepo is a repository that contains many distinct projects which are somewhat dependent on each other but they are logically independent and different teams can work on them in isolation. In this article, we will talk about how to set up a monorepo with Vite, Typescript, and pnpm workspaces.īefore we jump into the setup, we first need to understand what is a monorepo and why should we care about it. Monorepos are hot these days and it can significantly improve the development workflow and productivity among teams.
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